2243145 has 8 divisors (see below), whose sum is σ = 3589056. Its totient is φ = 1196336.

The previous prime is 2243123. The next prime is 2243161. The reversal of 2243145 is 5413422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2243145 - 2⁶ = 2243081 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2²¹ + 4² + 3⁷ + 1 + 4⁸ + 5⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74757 + ... + 74786.

It is an arithmetic number, because the mean of its divisors is an integer number (448632).

2^2243145 is an apocalyptic number.

It is an amenable number.

2243145 is a deficient number, since it is larger than the sum of its proper divisors (1345911).

2243145 is a wasteful number, since it uses less digits than its factorization.

2243145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149551.

The product of its digits is 960, while the sum is 21.

The square root of 2243145 is about 1497.7132569354. The cubic root of 2243145 is about 130.9038589116.

Adding to 2243145 its reverse (5413422), we get a palindrome (7656567).

The spelling of 2243145 in words is "two million, two hundred forty-three thousand, one hundred forty-five".